Requires an iPhone 5, 5c, 5s, 6, 6 Plus, 6s, or 6s Plus and iOS 8.2 or later. Apple Watch may ship with watchOS. But watchOS 2 is available as a free download.

Gender

Unisex (man or woman)

Color

Stainless

Glass

Sapphire crystal

Display

Retina display with Force Touch

Case back

Ceramic back

Band

Sport Band with stainless steel pin

Crown

Digital Crown

Feature

Heart rate sensor, accelerometer, and gyroscopeAmbient light sensorSpeaker and microphoneWi-Fi (802.11b/g/n 2.4GHz)Bluetooth 4.0Up to 18 hours of battery life*Water resistant**Apple Watch may ship with watchOS. But watchOS 2 is available as a free download.